Upgrading gasoline derived from synthesis gas

摘要

The present invention relates to a process for upgrading low grade gasoline made from synthesis gas, especially the gasoline made from coal-based processes. The process comprises contacting in the vapour phase the low-grade gasoline either alone or admixed with a C3/C4 hydrocarbon feed with a gallium/aluminosilicate catalyst. The product gasoline so formed has an octane rating RON (clear) above 100 and a bromine number below 2. The process enables synthesis gas and coal to be used as a source of high grade gasoline.